Can I upgrade my ebike controller?
Emma Payne
Published Jan 17, 2026
Yes, you can upgrade your bike controller to a higher controller that can pull more amps from the battery, so if your current ebike controller is 20 ambs and you need to upgrade 35 amps that's totally OK. however, you need to take into consideration the motor & Battery capacity before doing the upgrade.
Are all ebike controllers the same?
Important Note: the controller's voltage rating must match your battery and motor. If you buy a non-programmable controller, make sure that it's power and voltage matched with the power and voltage of the motor. If the motor voltage is 36V, then the voltage of the controller should be 36V too.
Can eBikes be upgraded?
Most of the time the easiest thing to change is the rear gearing. If you've got a cassette, it's simple for any bike shop to swap to something with different gearing. Some electric bikes will have a rear freewheel instead of a hub and cassette. This is just as simple to change but there are fewer options out there.
How can I get more power from my ebike?
Ebike power can be boosted by simply turning a 'pot' screw, disconnecting the power smoother plug or simply fitting a higher voltage battery. Alternatively, on high spec ebikes where battery and controller are inaccessible, you can fit performance chips.
Can I change the speed on my ebike?
Fortunately for you, it is possible to increase your bike speed. The best way to increase the speed of your electric bike speed is to use a battery with a higher voltage or purchase a motor with a higher KV rating. You could also strip your bike of unnecessary parts to reduce drag.
31 related questions foundHow do you override the speed limit on a eBike?
As a general rule, you can override the electric bike speed limiter by covering the pins of the speed sensor in the control connector or by changing the position of the speed sensor so that it is opposite the crank.
How do you hack the eBike limiter?
Fortunately for many eBike owners, it is possible to tune your e-bike to cruise past the 25km/h speed limit.
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Manually Delimiting an E-Bike
- Remove the sensor and magnet from the eBike.
- Find the pedal bracket of your electric bike, and attach the magnet to it.
- Move the sensor by turning it to face the magnet. That's it!
Can you put a bigger battery on a eBike?
You can buy a battery with a large capacity and nothing really changes. The voltage matters. You want the system voltage or something that is within the range of the controller. There's a lot of information out there, but it is spread around.
Can you upgrade battery on eBike?
In reality, swapping out your old eBike battery for a new one is easy, as long as you do it correctly. You don't have to purchase a brand new eBike just because the old battery is dead or damaged.
How do I choose an eBike controller?
Controller Voltage & Power
If you're selecting a controller for a specific motor, check the controller voltage, and power. If you buy a non-programmable controller, ensure that the control voltage should be the same as motor voltage and the controller power should be the same or slightly more than the motor power.
Can you hack an eBike?
The Speedi device tricks the speed sensor on the rear wheel into spinning more slowly, effectively raising the e-bike's electronic speed limit by around 50%. It uses a small gear with a 1:1.5 ratio to slow down the speed sensor. That would effectively turn a 15.5 mph e-bike into a more thrilling 23 mph ride.
Can you change handlebars on an eBike?
Swapping out handlebars is fairly easy, as long as your cables are long enough. Swapping out a thumb shifter for a twist grip shifter is more difficult, and if possible I'd leave that modification to your local bike shop mechanic, since you've stated that you're not mechanically inclined.
Can you chip an eBike?
In short, no. Chipping an e-bike is illegal because it affects its classification, changing it from bicycle to moped. This means that if you do chip your e-bike, you will have to adhere to the rules and regulations of driving a moped according to the law where you live.
How do I choose a speed controller?
Selecting motor speed controllers requires an analysis of electrical specifications.
- Supply voltage (AC) is the range of AC input voltage that will operate the drive or controller.
- Supply voltage (DC) is the range of DC input voltage that will operate the drive or controller.
Can you run a hub motor without a controller?
Re: Way to test run a hub motor without the controller? Assuming its a brushless motor (3 wires ?) , then no, you need a controller to test run it.
What is dual mode controller?
Dual mode is a name that describes ane-bike controllers' ability to function with or without a Hall sensor drive to manage the efficiency of the electric motor within thee-bike. This is necessary in case the sensors in a motor fail and provide an electric bike controller that is somewhat universal.
Can you put a 48 volt battery on a 36 volt eBike?
Most 36V controllers will support a 48V pack, but the LVC will still be set for a 36V pack, so you'll need to monitor pack voltage and not let it get too low.
Will a higher voltage battery make my ebike faster?
Since motor speed is voltage dependent, using a higher voltage battery is the quickest way to substantially increase your speed.
How do you bypass the governor on a eBike?
You can use the full power of your electric bike following three methods to remove the speed limiter. The methods are hand method, disconnect the sensor wiring, and the last one is using bike tools. Then you can ride at your desired speed on off-road driving, during mountains, or on personal property.
How do I take the governor off my e-bike?
You can use your hand to remove the speed limiter of your electric bike, and it is one easiest way. By removing the frame's base sensor and the rear wheel's magnet, you can get rid of speed limit issues. The sensor and magnet help to detect the speed automatically and turn off the bike or slow it down.
Can electric bikes be Derestricted?
Derestricting, also known as tuning, is possible because the electric bike only has the limit because of the manufacturer — meaning that removing the manufacturer's settings will enable the cycle to use its motor's full power.
How fast can a 250W electric bike go?
How Fast Can A 250W Electric Bike Go? It is approx 20 mph, a 250-watt electric bike can goes 20 mph (32.19 km/h) on flat ground.
Why are e bikes limited to 15 mph?
“E-bikes are not 'unlicensed motorbikes' as they've been labelled in some reports. “A speed of 15.5mph is just a tad too slow when it comes to being safe going through traffic.” Current laws restrict e-bikes to 15.5mph – or 25km/h – which means when you hit that speed, the engine will cut out.
Should I tune my eBike?
Cycling is better without tuning
The electric drive puts an end to the slog of energy-sapping bike trips, offering comfortable support that can be adjusted to suit individual needs. Tuning is therefore completely unnecessary for fully enjoying everything that eBikes have to offer.